Răspunsuri

2014-09-19T17:43:01+03:00
50:60=0,8(km parcurge intr-un minut)
0,8x15=12km  parcurge in 15 min
2014-09-19T17:52:24+03:00
1 ora are 60 minute = 4/4 - un intreg
15 minute reprezinta 1/4 dintr-o ora

50: 4 = 12, 5 km

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